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PartsTable / COMPONENT / B2057
B2057 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 12.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-014-5624, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B2057
NSN: 4520-00-014-5624
FSC: 4520
CAGE: 51403 — BENMAR HEATER DIV STACEE MFG INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width12.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity1
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationTIGHT
nondefinitive_spec/std_data111 TYPE AND 2 CLASS AND 00 GRADE
standard_tolerance_designationABEC NO.1
NSN4520-00-014-5624
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,BALL,ANNULAR TITLE COMPONENT PN B2057 MFR BEARING,BALL,ANNULAR
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY;QQ-A-561;TEMPER H14;ANODIZE;MIL-A-8625;TYPE 1;3.625 IN. DIA;0.156 IN. HEIGHT;1.625 IN. DIA BORE;FOUR HOLES 0.149 IN. DIA ON 3.312 IN. DIA BOLT CIRCLE IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY;QQ-A-561;TEMPER H14;ANODIZE;MIL-A-8625;TYPE 1;3.625 IN. DIA;0.156 IN. HEIGHT;1.625 IN. DIA BORE;FOUR HOLES 0.149 IN. DIA ON 3.312 IN. DIA BOLT CIRCLE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
203SFQ4Interchangeable
interchangeable cross-reference
interchangeable
FFB171Interchangeable
interchangeable cross-reference
interchangeable
7503T1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B2057?
B2057 is a BEARING,BALL,ANNULAR.
What parts can replace B2057?
There are 3 known substitutes for B2057: 203SFQ4, FFB171, 7503T1. Substitute compatibility should be verified for your specific system.
What is the NSN for B2057?
B2057 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-014-5624. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026